Highmark

4 breaches1.1M affected in allHealthcare

Insider breachInsider exposed names and health records. Reported to the HHS archive.6,205 affectedInsuranceUSMar 29, 2024 Phishing breachPhishing exposed names, health records and insurance details. Reported to the California AG.1.1M affectedHealthcareUSMar 11, 2022 Breach, details not statedBreach notice filed with the California AG, details not stated.5,921 affectedHealthcareUSJun 24, 2021 Lost or stolen device breachLost or stolen device exposed names and health records. Reported to the HHS archive.2,589 affectedHealthcareUSJul 8, 2014

About

Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

Added2026-09-25

Highmark, 2014-07-08

disclosed2026-09-25

Highmark, 2022-03-112022-03-11

disclosed2026-09-25

Highmark, 2022-03-112022-06-30

summary2026-09-25

Highmark, 2022-03-11Highmark, the business associate (BA), reported that an employee was the subject of an email phishing scheme that compromised the protected health information (PHI) of 36,600 individuals. The PHI involved included names, addresses, birthdat

Added2026-09-25

Highmark, 2024-03-29

sector2026-09-25

Highmark, 2021-06-24health

records_basis2026-09-25

Highmark, 2021-06-24organization

records2026-09-25

Highmark, 2021-06-245921

data_types2026-09-25

Highmark, 2022-03-11["names","health","insurance"]

records_basis2026-09-25

Highmark, 2022-03-11organization

records2026-09-25

Highmark, 2022-03-111073316

disclosed2026-09-25

Highmark, 2022-03-112022-07-27

data_types2026-09-25

Highmark, 2022-03-11["names"]

sector2026-09-25

Highmark, 2022-03-11health

attack2026-09-25

Highmark, 2022-03-11phishing

discovered2026-09-25

Highmark, 2022-03-112022-12-15

Added2026-09-25

Highmark, 2021-06-24

Added2026-09-25

Highmark, 2022-03-11

Added2026-09-25

Highmark